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Optics Letters

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  • Vol. 24, Iss. 18 — Sep. 15, 1999
  • pp: 1278–1280

Microcavity lasing of optically excited cadmium sulfide thin films at room temperature

D. M. Bagnall, B. Ullrich, X. G. Qiu, Y. Segawa, and H. Sakai  »View Author Affiliations


Optics Letters, Vol. 24, Issue 18, pp. 1278-1280 (1999)
http://dx.doi.org/10.1364/OL.24.001278


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Abstract

We report what is believed to be the first observation of lasing of an optically pumped thin CdS film formed by laser ablation on glass. Laser action is observed at room temperature, and the emission peak is at 501 nm. X-ray diffraction shows that the polycrystalline films are of wurtzite structure and have (002) preferred orientation. Fabry–Perot laser modes are spaced 16 nm apart, indicating a cavity length of 2.9μm . The cavity is formed by consistently self-formed microcavities within the hexagonal lattice.

© 1999 Optical Society of America

OCIS Codes
(140.3390) Lasers and laser optics : Laser materials processing
(140.3580) Lasers and laser optics : Lasers, solid-state
(140.5560) Lasers and laser optics : Pumping
(310.6860) Thin films : Thin films, optical properties

Citation
D. M. Bagnall, B. Ullrich, X. G. Qiu, Y. Segawa, and H. Sakai, "Microcavity lasing of optically excited cadmium sulfide thin films at room temperature," Opt. Lett. 24, 1278-1280 (1999)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-24-18-1278


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